2013 CJC P1 Q4

2013 CJC P1 Q4

7 marks

Using an algebraic method, solve the inequality \(\frac{x+4}{3+2x-{{x}^{2}}}<1\).[5]
Hence solve the inequality \(\frac{{{x}^{2}}-4}{{{x}^{4}}+2{{x}^{2}}-3}<1\). [2]

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Answer:(a) x < -1 or x > 3; (b) x < -1 or x > 1

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